SERVICE ADVISORY. Over the next four days I will be in Washington, D.C. and Bethesda, Maryland, on one of my regular medical vacations, as part of my participation in a study at the National Institutes of Health. Since I don't have one of those newfangled portable electronic devices, posting will be infrequent. Government agents may find me at the Morrison-Clark Inn (tell them to ring the bar) or at the National Archives, gazing again through tears upon the Founders' majestic plans for this Republic.